Swindon is an English Unitary Authority.
| Year | All Motor Vehicles | Cars and Taxis | Road Network Total Length |
|---|---|---|---|
| 2000 | 1,019,800,000 | 824,500,000 | 499.6 miles (804.0 km) |
| 2001 | 1,019,900,000 | 826,200,000 | 500.6 miles (805.6 km) |
| 2002 | 1,065,100,000 | 863,100,000 | 501.7 miles (807.3 km) |
| 2003 | 1,084,100,000 | 881,200,000 | 502.8 miles (809.1 km) |
| 2004 | 1,102,700,000 | 890,800,000 | 509.6 miles (820.1 km) |
| 2005 | 1,156,200,000 | 928,600,000 | 512.9 miles (825.4 km) |
| 2006 | 1,173,500,000 | 940,900,000 | 527.9 miles (849.6 km) |
| 2007 | 1,194,100,000 | 954,200,000 | 536.5 miles (863.4 km) |
| 2008 | 1,212,500,000 | 968,400,000 | 541.7 miles (871.7 km) |
| 2009 | 1,207,900,000 | 971,600,000 | 548.5 miles (882.7 km) |
| 2010 | 1,215,200,000 | 976,200,000 | 551.3 miles (887.3 km) |
| 2011 | 1,221,200,000 | 980,600,000 | 553.5 miles (890.8 km) |
| 2012 | 1,212,600,000 | 980,000,000 | 557.4 miles (897.1 km) |
| 2013 | 1,215,000,000 | 980,000,000 | 558.3 miles (898.5 km) |
| 2014 | 1,296,100,000 | 1,039,600,000 | 559.4 miles (900.2 km) |
| 2015 | 1,313,400,000 | 1,055,300,000 | 558.5 miles (898.8 km) |
| 2016 | 1,325,500,000 | 1,060,400,000 | 565.9 miles (910.7 km) |
| 2017 | 1,349,700,000 | 1,081,400,000 | 569.3 miles (916.2 km) |
| 2018 | 1,343,700,000 | 1,071,800,000 | 574.2 miles (924.1 km) |
| 2019 | 1,360,200,000 | 1,089,700,000 | 579.7 miles (932.9 km) |
| 2020 | 1,024,700,000 | 789,200,000 | 584.0 miles (939.8 km) |
| 2021 | 1,122,500,000 | 865,400,000 | 585.5 miles (942.2 km) |
| 2022 | 1,182,800,000 | 912,800,000 | 528.2 miles (850.0 km) |
| 2023 | 1,222,600,000 | 949,400,000 | 531.3 miles (855.0 km) |